Robust extended-range wireless power transfer using a higher-order PT-symmetric platform
A fundamental challenge for the nonradiative wireless power transfer (WPT) resides in maintaining the stable power transmission with a consistently high efficiency under dynamic conditions. Here, we propose and experimentally demonstrate that a frequency-locked WPT system satisfying the higher-order...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2020-02-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.013152 |
| _version_ | 1797211555775905792 |
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| author | Maryam Sakhdari Mehdi Hajizadegan Pai-Yen Chen |
| author_facet | Maryam Sakhdari Mehdi Hajizadegan Pai-Yen Chen |
| author_sort | Maryam Sakhdari |
| collection | DOAJ |
| description | A fundamental challenge for the nonradiative wireless power transfer (WPT) resides in maintaining the stable power transmission with a consistently high efficiency under dynamic conditions. Here, we propose and experimentally demonstrate that a frequency-locked WPT system satisfying the higher-order parity-time (PT) symmetry can achieve a near-unity power transfer efficiency that is resilient to effects of distance variation and misalignment between coils, and impedance fluctuations in electric grids. In specific higher-order PT electronic systems, a purely real-valued and coupling-invariant (nonbifurcated) eigenfrequency would enable the robust and efficient wireless charging without frequency hopping or adaptive impedance matching, even for midrange operation. We envision that this WPT technique may provide reliable, fast and efficient power delivery for a variety of consumer electronics, electric vehicles, and medical devices. |
| first_indexed | 2024-04-24T10:28:21Z |
| format | Article |
| id | doaj.art-a9e750a21d77442d821861f71e441a60 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:28:21Z |
| publishDate | 2020-02-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-a9e750a21d77442d821861f71e441a602024-04-12T16:49:48ZengAmerican Physical SocietyPhysical Review Research2643-15642020-02-012101315210.1103/PhysRevResearch.2.013152Robust extended-range wireless power transfer using a higher-order PT-symmetric platformMaryam SakhdariMehdi HajizadeganPai-Yen ChenA fundamental challenge for the nonradiative wireless power transfer (WPT) resides in maintaining the stable power transmission with a consistently high efficiency under dynamic conditions. Here, we propose and experimentally demonstrate that a frequency-locked WPT system satisfying the higher-order parity-time (PT) symmetry can achieve a near-unity power transfer efficiency that is resilient to effects of distance variation and misalignment between coils, and impedance fluctuations in electric grids. In specific higher-order PT electronic systems, a purely real-valued and coupling-invariant (nonbifurcated) eigenfrequency would enable the robust and efficient wireless charging without frequency hopping or adaptive impedance matching, even for midrange operation. We envision that this WPT technique may provide reliable, fast and efficient power delivery for a variety of consumer electronics, electric vehicles, and medical devices.http://doi.org/10.1103/PhysRevResearch.2.013152 |
| spellingShingle | Maryam Sakhdari Mehdi Hajizadegan Pai-Yen Chen Robust extended-range wireless power transfer using a higher-order PT-symmetric platform Physical Review Research |
| title | Robust extended-range wireless power transfer using a higher-order PT-symmetric platform |
| title_full | Robust extended-range wireless power transfer using a higher-order PT-symmetric platform |
| title_fullStr | Robust extended-range wireless power transfer using a higher-order PT-symmetric platform |
| title_full_unstemmed | Robust extended-range wireless power transfer using a higher-order PT-symmetric platform |
| title_short | Robust extended-range wireless power transfer using a higher-order PT-symmetric platform |
| title_sort | robust extended range wireless power transfer using a higher order pt symmetric platform |
| url | http://doi.org/10.1103/PhysRevResearch.2.013152 |
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